The Salesforce Transit Center, also known as the Transbay Transit Center, is a transit center in downtown San Francisco. It serves as the primary bus terminal for the San Francisco Bay Area, and is proposed as a possible future rail terminal. The centerpiece of the San Francisco Transbay development, the construction is governed by the Transbay Joint Powers Authority (TJPA). The 1,430-foot-long (440 m) building sits one block south-east of Market Street, a primary commercial and transportation artery.